Again, after about 100 miles or so with a new cap, same problem as before. I have a code and dead mis somewhere. It started happening slowly over a day or so then it just went to a dead mis. Seems kinda strange, second cap same issue again. Could the rotor be causing the cap to die>?

They are not acdelco. They are accel. Today when i took the cap off to go back to advanced, the number one plug wire came out of the boot and got stuck in the cap..... bunch of crap man and the trans seal blew in my 82 K30 again after the rebuild i had done to it..... bs

Check to see if the bushings in distributor are worn. Grab the rotor and see if there is any sideways plays in. A worn bushing will cause the rotor to wobble when turning and this would cause the rotor and cap to fail quickly.